Combined turn and tilt base



FIG. 1 is a front perspective view of the combined turn and tilt base showing my new design, the keyboard housing and display being shown in broken lines for illustrative purposes only;

FIG. 2 is a front view of the base of FIG. 1;

FIG. 3 is a top view of the base of FIG. 1;

FIG. 4 is a side view of the base of FIG. 1;

FIG. 5 is a rear view of the base of FIG. 1; and

FIG. 6 is a bottom view of the base of FIG. 1. 

The ornamental design for a combined turn and tilt base, substantially as shown and described. 